Jennifer Lopez is determined to save her marriage to husband Ben Affleck, and sources close to the star said she is making compromises after the actor moved out of their $60 million mansion last month and into a $100,000-a-month LA rental home. A friend of the performer said she has been “somber” while trying to navigate her relationship, career, and family life, RadarOnline.com has learned. “She has been taking the blame for the end of the tour and the marriage, and the mockery of the world. It is all the opposite of the truth,” the pal said, noting she has been unfairly “dragged” by critics….